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Black rectangular power brick with magnetic connector and attached six-foot cord

DELL 1800 44W 15V 2.58A AC adapter laptop charger

SKU CH-39PM-7SM9G MPN 1800.

A 44W 15V magnetic charger with USB port and 6ft cord for Surface Pro and Laptop models

  • CompatibilityMicrosoft Surface Pro 3 & Pro 4 i5 i7, Microsoft Surface Pro
  • Battery Voltage20V
  • AC Adapter Voltage20V
  • AC Adapter Current11.8A
  • AC Adapter Output Power85W
  • FeaturesMagnetic,Short Circuit Protection, USB Type A, Corded Electr
  • 44W output powers compatible Surface devices efficiently
  • Magnetic connector snaps securely for quick attachment
  • Additional USB port charges a phone simultaneously
  • 6ft power cord gives flexible placement options
  • Built-in short-circuit and overload protection safeguards hardware

What this charger powers

This 44 watt AC adapter delivers 15 volts at 2.58 amps and includes a USB Type-A port rated at five volts one amp. It is built for Microsoft Surface Pro 3 through 7, Surface Pro X, Surface Book, Surface Go and Surface Laptop 1 to 3. The magnetic connector snaps into place for a secure connection.

Limits of the 44 watt design

The unit supplies a maximum of 44 watts so devices that require higher input will charge slowly or not at all. Input range is 100 to 240 volts at 50 or 60 hertz for worldwide use. The six foot power cord and the adapter body measure 14.33 inches wide by 12.83 inches high by 9.06 inches deep and weigh 250 grams.

Check before ordering

Verify that your Surface model appears in the compatibility list and that the original charger specifies 15 volts 2.58 amps. Confirm the magnetic tip matches your device charging port. Ensure you have a standard mains outlet for the IEC input plug. This adapter is not suitable for units needing 20 volt or higher output.

Highlights

  • 44W output powers compatible Surface devices efficiently
  • Magnetic connector snaps securely for quick attachment
  • Additional USB port charges a phone simultaneously
  • 6ft power cord gives flexible placement options
  • Built-in short-circuit and overload protection safeguards hardware

Specifications

BrandDELL
ModelA1800
Part NumberA1800
CompatibilityMicrosoft Surface Pro 3 & Pro 4 i5 i7, Microsoft Surface Pro 5(2017), Microsoft Surface Go 3 2 1, Microsoft Surface Pro 6, Microsoft Surface laptop 3/2/1
Battery Voltage20V
AC Adapter Voltage20V
AC Adapter Current11.8A
AC Adapter Output Power85W
FeaturesMagnetic,Short Circuit Protection, USB Type A, Corded Electric, 1, type_a_2pin_na, 15 volts, 15 amps
Dimension14.33in W x 12.83in H x 9.06in D
Weight250 grams

Questions about this item

Should I pick the 44W model or the 85W version listed in the specs?

The 44W unit is the correct replacement for Surface Pro 3 through 7, Surface Go, Surface Book and Surface Laptop 1 to 3; the 85W figure belongs to a different Dell A1800 variant and will not fit those devices.

What does the 15V 2.58A output actually deliver to my Surface?

It supplies 44 watts, matching the original charger so the tablet or laptop charges at the normal rate while you work.

How does the magnetic connector and USB‑A port work together?

The magnetic tip snaps onto the Surface charging port, and the extra USB‑A port provides 5V 1A to charge a phone or accessory at the same time.

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